Scope of Application
NLW1 Series Intelligent Universal Air Circuit Breaker (hereinafter referred to as breaker) is mainly suitable for distribution network with AC 50 Hz, rated voltage of 400V, 690V and rated current 630A-6,300A. It is used for power distribution, circuit protection, and avoid the power supply device from danger of under voltage, short circuit and ground fault. Its core component is equipped with intelligent tripping device, which has accurate selective protection , avoiding unnecessary outage and improving the reliability, continuity and safety of power supply system.
Standard:
GB 14048.2-2008, EEC 60947-2:2006
Main Specification And Technical Parameters
| Model | NLW1-2000 | NLW1-3200 | NLW1-4000 | NLW1-6300 |
| Frame Size Current Inm (A) | 2000 | 3200 | 4000 | 6300 |
| Rated Current In (A) | 630 | 800 | 1000 | 1250 | 1600 | 2000 | 2000 | 2500 | 2900 | 3200 | 3200 | 3600 | 4000 | 4000 | 5000 | 6300 |
| Rated Operational Voltage Ue (V) | 400,690 | 400 |
| Rated Insulation Voltage Ui (V) | 1000 |
| Rated Impulse Withstand Voltage Uimp (V) | 8000 |
| Number of Poles | 3,4 | 3,4 | 3,4 | 3,4 |
| N pole rated current In (A) | 50%In, 100%In |
| Limiting Short-circuit Breaking Capacity Icu (kA) | AC400V | 80 | 80 | 80 | 80 |
| AC690V | 50 | 65 |
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| Operating Short-circuit Breaking Capacity Ics (kA) | AC400V | 50 | 65 | 70 | 80 |
| AC690V | 40 | 65 |
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|
| Rated Short-time Withstand Current Icw (kA/s) | AC400V | 50 | 65 | 65 | 65 |
| AC690V | 40 | 50 |
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|
| Complete Breaking Time (non-delay)ms | 25-30 |
| Closing Time (ms) | 70max |
| Intelligent Controller | L (Economical) | 0 | 0 | 0 | 0 |
| M (Normal) | 0 | 0 | 0 | 0 |
| H (Communicational) | 0 | 0 | 0 | 0 |
| Operating Cycle Number | 3000 | 2000 | 2000 | 2000 |
| Installation | Connection | Horizontal,Verical | Horizontal,Verical | Horizontal,Verical | Horizontal,Verical |
| Types | Draw-out Type | 0 | 0 | 0 | 0 |
| Fixed Type | 0 | 0 | 0 | 0 |
Ningbo Ville Electric Co., Ltd. is a company specialized in research, development and production of transformer and high voltage & low voltage electrical power equipment.
It locates in Hi-technical enterprise R & D center zone of Ningbo, Zhejiang province, which is one of the well-know coastal city in China. Its professional engaged in turnkey project contractor of power substation, power plant project and electric power complete equipments.
Working field: Manufacturing, engineering, designing, executing and commissioning for HV and LV electrical products.
Products application:
Power-fossil fuel plant, Steel plant, Infrastructure- railway, international generation, substation, hydropower station, wind power substation, transmission and distribution.
We has excellent experience and good capacity in complete projects equipments in Generation, Substation, Transmission and Distribution from 400V-330kv, especially in Power plant, Substation construction and Transmission line, including of design, complete equipment, installation, Commissioningand after-sales service, and also design the complete Electrical Solutions according to customer's demand. We are mainly services to International State Power Board, Power Construction Contractor, Power Project Contractor, Factories and the Electric Power Project in the world.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide electrical equipment supplier"
